How to compost?
If you just leave your organic matter such as leaflitter on the ground it will naturally create humus.
If you would like to further improve the soil with extra humus, you can either go out and buy composted soil, or suggest the homeowner to start composting in their yard.
A compost pile can be enclosed, inserted in a bin, or just left in the open. You start the composting by collecting organic materials. The decomposition process is aided by adding moisture and ensuring proper aeration by regularly turning the mixture. Worms, fungi and bacteria further break up the material. Although dairy and meat ore organic and will decompose, you shouldn’t advice homeowners to use it in the compost, as it will attract rodents. To make the process more efficient you can built several piles next to each other.
The ideal mixture for composting is:
80% browns (carbon; dry leaves, wood chips, straw, sawdust, cornhusks, newspaper etc)
20% greens (nitrogen: food scraps, grass clippings, Coffee grounds, manure, fresh leaves etc)